# Question about tutorial on kirupa: parse news headline

**URL:** <https://forum.kirupa.com/t/question-about-tutorial-on-kirupa-parse-news-headline/287852>\
**Category:** Uncategorized\
**Created:** [May 7, 2009, 12:30am UTC](https://forum.kirupa.com/t/question-about-tutorial-on-kirupa-parse-news-headline/287852 "2009-05-07T00:30:48Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![ngquochung86](https://avatars.discourse-cdn.com/v4/letter/n/ee59a6/32.png) [@ngquochung86](https://forum.kirupa.com/u/ngquochung86)\
**Post date:** [May 7, 2009, 12:30am UTC](https://forum.kirupa.com/t/question-about-tutorial-on-kirupa-parse-news-headline/287852/1 "2009-05-07T00:30:48Z")

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I’ve just read one tutorial from tutorial of kirupa and I couldn’t understand part of the code.  
The source code of that tutorial can be download here: [http://www.kirupa.com/web/code/xml\_intermediate.zip](http://www.kirupa.com/web/code/xml_intermediate.zip)  
Here is the link to that tutorial: [http://www.kirupa.com/web/xml\_php\_parse\_intermediate.htm](http://www.kirupa.com/web/xml_php_parse_intermediate.htm) (including original XML code)

Now is the main question, I do not understand this part of code:

```auto
$xml_headline_key = "*NEWS*STORY*HEADLINE";
$xml_description_key = "*NEWS*STORY*DESCRIPTION";

```

1/Why he make NEWS, STORY HEADLINE uppercase? What is it used for? I tried turning this to lowercase and it not work. It only work if in uppercase.  
When you open the tutorial from the link I gave, in the XML code, the tag \<news\> \<story\> are in lowercase, so why here it has to be in uppercase

2/What is the symbok \* used for in the code of "_$data" or in the code of NEWS_STORY\*HEADLINE?  
Thank you very much